The PlayStation Network will be running standard maintenance on Monday December 9, giving users an update to improve the functionality of the PSP and PS Vita.

"We wanted to take a moment to let everyone know that there is a planned network maintenance for PlayStation platforms scheduled for Monday, December 9th from 9:00 AM to 2:00 PM Pacific Time (12 noon to 5:00 PM Eastern). To clarify, this is currently scheduled to be a 5 hour maintenance," PlayStation posted on their community forum.

PSN will work as normal as far as games and apps, but the Store, Home, and Account Management will be down during that time.

"This maintenance will increase the number of devices that can be activated by an account as a portable gaming device. This means that you can now activate up to three portable gaming devices (PSP (PlayStation Portable) and PlayStation Vita) on your SEN account. This new portable gaming device allotment is in addition to the other network improvements being implemented during this downtime," the post for PlayStation said.

Yesterday Sony announced that The PlayStation Network is having some of their accounts reset because there has been some "irregular activity" on the server, Sony says, concerning some of the emails the company was getting from users.

"The Sony Entertainment Network team routinely monitors for any irregular activity, and if such activity is detected, we may sometimes reset passwords of affected accounts to protect consumers and their account information. Your account password was recently reset as part of this process," the email sent out to reset users reads.

Sony has not revealed what this "irregular activity" is and if there was a hack or major problem. Polygon further investigated the story, and received an email similar to the ones sent out to Sony customers with some more information.